Back to results
US 7,003,038 B2Granted
Activity descriptor for video sequences
AssigneeMitsubishi Electric Research Labs, Inc.
InventorsAjay Divakaran, Huifang Sun, Hae-Kwang Kim, Chul-Soo Park, Xinding Sun, Bangalore S. Manjunath, Vinod V. Vasudevan, Manoranjan D. Jesudoss, Ganesh Rattinassababady, Hyundoo Shin
Life of this patent
Estimating the term…
Abstract
A method describes activity in a video sequence. The method measures intensity, direction, spatial, and temporal attributes in the video sequence, and the measured attributes are combined in a digital descriptor of the activity of the video sequence.
Claims21
A method for describing activity in a compressed video sequence, comprising the steps of:
- measuring intensity attributes of the activity in the compressed video sequence;
- measuring direction attributes of the activity in the compressed video sequence;
- measuring spatial attributes of the activity in the compressed video sequence;
- measuring temporal attributes of the activity in the compressed video sequence;
- and
- combining the measured intensity, direction, spatial and temporal attributes of the activity in a digital descriptor of the activity of the compressed video sequence.
3 more elements
A method for describing an activity represented in a compressed video sequence, comprising:
- deriving motion information of the activity representing the compressed video sequence;
- determining an intensity attribute corresponding to an intensity level of the represented activity, a direction attribute corresponding to a direction of the represented activity, a spatial attribute corresponding to a spatial dimension of the represented activity, and a temporal attribute corresponding to a temporal dimension of the represented activity, based on the derived motion information;
- and
- describing the activity with a descriptor corresponding to the determined attributes.
1 more element
Dependencies are inferred from the claim text.